baber/WOPTO huggingface dataset:
Patent CA-2261020-A1 (CA)
Title: Preparation of pichia methanolica auxotrophic mutants
Inventor: RAYMOND CHRISTOPHER K
IPC: C12N1/16
Filed: 1997-07-14
Abstract: Methods for preparing Pichia methanolica cells having auxotrophic mutations are disclosed. The methods comprise the steps of: (a) exposing P. methanolica cells to mutagenizing conditions; (b) culturing the cells from step (a) in a rich medium to allow mutations to become established and replicated in at least a portion of the cells; (c) culturing the cells from step (b) in a culture medium deficient in assimilable nitrogen to deplete cellular nitrogen stores; (d) culturing the cells from step (c) in a defined culture medium comprising an inorganic nitrogen source and an amount of nystatin sufficient to kill growing P. methanolica cells to select for cells having a deficiency in a nutritional gene; and (e) culturing the selected cells from step (d) in a rich culture medium.
Patent CA-2262555-A1 (CA)
Inventor: FICHT REINHOLD
IPC: F02B75/02
Filed: 1997-08-26
Abstract: L'invention concerne un moteur à gaz liquéfié comportant au moins une chambre d'explosion (4) dans laquelle un mélange gaz liquéfié/air est introduit et allumé, ce moteur à gaz liquéfié présentant un système d'injection (1) pulvérisant du gaz liquéfié par l'intermédiaire d'un injecteur (2). Ce dernier (2) débouche dans la chambre d'explosion (4) de sorte que le gaz liquéfié est injecté directement dans cette dernière. L'injection directe du gaz liquéfié permet d'obtenir des conditions de combustion idéales, notamment du fait que le gaz liquéfié vaporisé dans la chambre d'explosion (4) provoque un refroidissement mis particulièrement en valeur en cas de charge élevée. Ce moteur à gaz liquéfié comprend de préférence un système d'injection (1) se présentant sous forme de pompe à piston alternatif et travaillant selon le principe d'un accumulateur d'énergie.
Patent CA-2263677-A1 (CA)
Title: Method of forming toothed wheels and product formed thereby
Inventor: HIMMEROEDER HELGE
IPC: B23P15/14
Filed: 1997-08-28
Abstract: A method for forming a toothed wheel which comprises the steps of providing a circular sheet metal blank of uniform thickness, cold forming an outer peripheral portion thereof into a thickened rim of uniform generally rectangular cross-sectioned configuration having (1) an outer periphery which does not exceed the outer periphery of the toothed wheel to be formed by approximately two percent, (2) a radial dimension at least 2.0 mm greater than the tooth height of the toothed wheel to be formed, and (3) an axial dimension at least twice the uniform thickness of said blank, the cold forming comprising progressively moving a predetermined marginal peripheral portion of the metal blank having a cross-sectional outline radially inwardly and axially outwardly while the integral integrity of the metal within the cross-sectional outline is maintained without merging portions of the cross-sectional outline together, and cutting a series of teeth in the periphery of the thickened rim by a hobbing operation.
Patent CA-2267590-A1 (CA)
Inventor: WU JONGLIANG
IPC: G02C7/04
Filed: 1999-03-29
Abstract: This invention provides a contact lens comprising a front surface, a back surface, and an identifying mark, wherein said identifying mark comprises one or more holes depressed into at least one of said surfaces of said lens.
Patent CA-2272075-A1 (CA)
Title: Procede d'elaboration d'un materiau d'interphase, materiau obtenu, procede de traitement d'une fibre ceramique de renfort avec ce materiau et procede de fabrication d'un materiau thermostructural associe
Inventor: LARNAC GUY
IPC: C04B35/80
Filed: 1999-05-14
Abstract: - L'objet de l'invention est un procédé d'élaboration d'un matériau d'interphase à partir d'oxydes présentant des porosités, prévu pour être disposé entre un matériau de renfort céramique, notamment des fibres, et une matrice verre, céramique ou vitrocéramique, caractérisé en ce qu'il consiste à: - choisir une composition sensiblement identique à celle de la matrice et/ou du matériau de renfort, en sorte de limiter la diffusion et de disposer de coefficients de dilatation sensiblement identiques mais ayant une température de fusion supérieure à celle de la matrice, - ajouter à ladite composition un auxiliaire générateur de porosité, - dépose de ladite composition sur le matériau de renfort. L'invention couvre aussi le matériau obtenu, le procédé de traitement d' une fibre céramique de renfort avec ce matériau d' interphase et le procédé fabrication d'un matériau thermostructural associé.
Patent CA-2272175-A1 (CA)
Title: Reactive silicon group-containing oxypropylene polymer and method of producing same
Inventor: FUJITA MASAYUKI
IPC: C08G65/48
Filed: 1991-04-08
Abstract: This invention provides a novel reactive silicon group-containing oxypropylene polymer and a method of producing the same. The reactive silicon group-containing oxypropylene polymer of the invention is an oxypropylene polymer the main polymer chain of which is essentially composed of a repeating unit of the formula (see fig. I) and which has at least one reactive silicon group and at least one urethane bond each terminal to the chain, an Mw/Mn ratio of not more than 1.5 and a number average molecular weight of not less than 3,000. The production method of the invention is characterized by reacting an oxypropylene polymer having an Mw/Mn ratio of not more than 1.5 and a number average molecular weight per terminal functional group of not less than 1,500 with a compound having a reactive silicon group and an isocyanato group.
Patent CA-2272181-A1 (CA)
Inventor: TORRENCE ROBERT J
IPC: F16K1/14
Filed: 1999-05-18
Abstract: A thermally responsive expansion valve having an inlet and outlet disposed at right angles in a body having a valving passage communicating between the inlet and outlet with a valve seat and a valve obturator moveable with respect to the valve seat for controlling flow through the valving passage. A fluid filled capsule attached to the valve body has a diaphragm moveable in response to changes in pressure in the fluid capsule which is intended for connection to a remote fluid filled sensing bulb through a capillary tube.  A one piece operating member has a pad contacting the diaphragm and three integrally formed legs each slidably received in a bore in the body. A capped spring biases the obturator against the valve seat and upon movement of the diaphragm and pad, the legs are operable to act against the cap and overcome the spring bias to permit the obturator to move away from the valve seat. A spring retainer is pre-positioned in the inlet to provide a predetermined bias of the spring and thus calibration after assembly is eliminated.
Patent CA-2273436-A1 (CA)
Inventor: KELLY MICHAEL THOMAS
IPC: C07C235/28
Filed: 1999-06-01
Abstract: Antibiotic polyketide compounds are provided having the formula (see formula I) wherein:      R1 and R2 are the same or different and are independently H or R;   R is a structural fragment having a saturated or unsaturated linear, branched, or cyclic, skeleton containing one to ten carbon atoms in which the carbon atoms may be optionally substituted with a substituent selected from the group consisting of: -OH; =O; -OR5; -O2CR5, -SH; -SR5; -SOCR5; -NH2; -NHR5; -NH(R5)2; -NHCOR5;    NRCOR5; -I; -Br; -Cl; -F; -CN; -CO2H; -CO2R5; -CHO; -COR5; -CONH2; -CONHR5; -CON(R5)2; -COSH; -COSR5; -NO2; -SO3H; -SOR5; and -SO2R5, wherein R5 is a linear, branched or cyclic, one to ten carbon saturated or unsaturated alkyl group;   R3 and R4 are different and are independently selected from the groups consisting of OH, (see formula II) and (b) -O~Z-Ar wherein, Z1 and Z are linear or branched, saturated or unsaturated, one to ten carbon fragments optionally substituted with Y;   Ar is a monocyclic, bicyclic or tricyclic, fully or partially aromatic system containing five or six membered carbocyclic or, oxygen, nitrogen or sulphur containing heterocyclic rings, optionally substituted with R or Y;  Y is selected from the group consisting of: H; =O, -OH; -OR; -O2CR; -SH; -SR; -SOCR; -NH2; -NHR; -NH(R)2; -NHCOR; NRCOR; -I; -Br; -Cl; -F; -CN- -CO2H;   -CO2R; -CHO; -COR; -CONH2; -CONHR; -CON(R)2; -COSH; -COSR; -NO2; -SO3H; -SOR; -SO2R; and, -O- (epoxide);      W is H or R; with the provisos that when W is H, R2 is not H; when R2 is CH3, W is not n-propyl; and, one of R3 and R4 is (a) or (b) and another of R3 and R4 is OH.
Patent CA-2273846-A1 (CA)
Inventor: DAVIES DONALD
IPC: A61K31/737
Filed: 1997-12-01
Abstract: This invention relates to the treatment of patients suffering from highly vascular tumours, and provides a method of treatment for patients suffering from Kaposi's sarcoma, which comprises administering dextrin sulphate to the patient. The treatment results in regression of the tumours and the improvement persists for a considerable time after completion of the treatment.
Patent CA-2276329-A1 (CA)
Title: Hydroxyalkylated starch ester and preparation and use thereof
Inventor: TIITOLA PERTTI
IPC: C08L3/04
Filed: 1997-12-31
Abstract: The invention concerns a hydroxypropyl starch ester (HPS ester), composition containing it, and a process for the preparation thereof. According to the invention, the molar substitution in the HPS ester is 2 at the most and the substitution degree in the ester group is at least I. The HPS ester is prepared by hydroxypropylating a starch-containing base material in an aqueous alkanol medium. A starch component can be prepared of the HPS ester containing 90 to 60 % by weight HPS ester and 10 to 40 % by weight of a plasticizer. Compositions which are suited for, e.g., coating board or paper and for use as a component in labelling adhesives or paint, can be made from the starch component by combining it with auxiliaries known as such within the polymer and plastics technology.
Patent CA-2277683-A1 (CA)
Title: Resin concrete composition and molded article thereof
Inventor: KANAI TOSHIO
IPC: C08F283/01
Filed: 1999-07-19
Abstract: A resin concrete composition and its molded article are provided, the resin concrete, even with a reduced resin content, having an excellent flowability, which is an important property in a molding operation, and necessitating no shrinkage reduction agent, and the molded article having no cracks and being highly strong. The resin concrete composition comprises (A) a resin composition containing (a) an unsaturated polyester of an unsaturated acid, a di- and/or trialkylene glycol, and dicyclopentadiene and (b) a polymerizable unsaturated monomer, (B) an aggregate, and (C) a filler.
Patent CA-2280736-A1 (CA)
Inventor: BARON MARGARET H
IPC: C12N5/00
Filed: 1998-02-10
Abstract: L'invention concerne des procédés et des tests destinés à sélectionner des composés fonctionnellement équivalents à un produit génique exprimé dans le tissu extra-embryonnaire d'un embryon. Ces procédés sont destinés à moduler l'hématopoïèse et la croissance vasculaire, le composé étant notamment une protéine à structure dite "en hérisson", ainsi qu'un agoniste d'un récepteur de liaison de protéine à structure dite "en hérisson". Conformément à ce procédé, un tel composé permet de soumettre à hématopoïèse ou développement du système vasculaire des cellules non différenciées mésodermiquement dérivées. Ces cellules non différenciées mésodermiquement dérivées peuvent par exemple être des cellules souches hématopoïétiques et des cellules embryonnaires d'explants. Le procédé de cette invention permet de traiter diverses pathologies, notamment les anomalies de croissance vasculaire ou d'hématopoïèse, ainsi que les pathologies liées à une quantité anormale de cellules de la série érythocytaire ou à une croissance vasculaire anormalement élevée.
Patent CA-2284396-A1 (CA)
Title: Semiconductor mounting package
Inventor: YAMAMOTO YOSHIYUKI
IPC: H01L23/36
Filed: 1999-09-29
Abstract: A semiconductor mounting package includes one or a plurality of diamond members having one surface on which one or a plurality of semiconductor chips are mounted and the other surface opposing to this one surface, and a high thermal conductivity metal member adhered to the other surface of the diamond member.
Patent CA-2285772-A1 (CA)
Title: Apparatus for the preparation of preforms in manufacturing plants for the production of bottles and containers or products of various kind
Inventor: DA RIOS ANTONIO
IPC: B29C45/32
Filed: 1999-10-08
Abstract: Preform preparation apparatus for manufacturing plants for the production of bottles and containers, as well as products of various kind, comprising moulding means provided with machine tools for the preparation of a mass of molten plastic material, in view of obtaining a plurality of preforms therefrom, possible preform loading means and preform conveying means, along with means for cooling down and processing the same preforms in view of obtaining the desired finished products, in which said moulding means comprise at least a first and a second moulding means (26, 27) provided with plungers or punches (28) and at least a third moulding means (22) provided with moulding cavities (25), all of them communicating with said machine tools, said first and second moulding means (26, 27) being capable of selectively coupling with said third moulding means (22) for forming said preforms, in such a manner that, in the situation in which one of said first and second moulding means (26, 27) is coupled with said third moulding means (22), the other one carrying the related moulded preforms is subjected to the action of said cooling means (31).
Patent CA-2286161-A1 (CA)
Title: Determining the location of a subscriber unit in a mobile communication system
Inventor: SPARTZ MICHAEL K
IPC: H04W4/029
Filed: 1998-04-07
Abstract: A mobile telephone system employs a fleet of satellites (14) and a set of gateway ground stations (10) arranged around the globe for handling communications to and from mobile communication subscriber units (12) such as mobile telephones. Signals are transmitted between a subscriber unit (10) and the nearest gateway (10) via one or more of the satellites. The gateway system is configured to process telephone call connection requests from a mobile subscriber unit (12) based upon the location of the subscriber unit. The location of the subscriber unit is employed, for example, to determine how telephone numbers are to be parsed and how to properly route emergency telephone calls to the nearest appropriate emergency service centers. Multiple location mapping schemes are employed to facilitate a determination of the location of a subscriber unit and to assist in routing emergency calls. In one implementation, each location with the service area of the system is mapped into a set of uniformly sized and shaped information cells (802). Each information cell includes pointers to data structures (806, 808) defining, among other things, the service providers that are permitted to process calls to or from that location and the nearest emergency services center. Each location is also mapped into at least one virtual service provider cell (812, 814, 816, 818, 820) which includes service provider preferences and requirements for handling a call to from that location and including a unique location identifier. A specific implementation for use with the Global System for Mobile Communication (GSM) is described.
Patent CA-2286208-A1 (CA)
Title: Procede de travail de decoupes en carton
Inventor: RUTHENBERG MEYER L
IPC: B31B50/25
Filed: 1998-03-13
Abstract: L'invention concerne un procédé de travail de découpes (104) en carton. Le procédé consiste à fournir des première et seconde paires de mandrins parallèles et rotatifs (106, 121) supportant respectivement des première et seconde paires de têtes d'outil (119, 135). La première paire de têtes d'outil (119) est mise dans une position longitudinale prédéterminée le long de la première paire de mandrins (106) pour définir une première "ligne de travail" (150). De même, la seconde paire de têtes d'outil (135) est mise dans une position longitudinale prédéterminée le long de la seconde paire de mandrins (121) pour définir une seconde "ligne de travail" (152). Le centre de la première "ligne de travail" (150) est déplacé par rapport au centre de la seconde "ligne de travail" (152). On fait passer la découpe (104) en carton entre les première et seconde paires de têtes d'outil (116, 135) de façon à former une ligne pour panneau sur la découpe (104) en carton. Les têtes d'outil peuvent être automatiquement placées le long de leurs mandrins respectifs par l'assemblage d'éléments (262, 264) qui se déplacent de manière linéaire et parallèle par rapport aux mandrins.
Patent CA-2287548-A1 (CA)
Title: Sport implement with hinged shaft
Inventor: LEBLANC MARC-ANDRE
IPC: A63B53/10
Filed: 1999-10-22
Abstract: The sport implement, more particularly a golf club, has a shaft with a flexible joint dividing the shaft in at least two sections. The joint includes first and second sleeve members receiving and secured to the respective shaft sections.  An abutment member defining two flanges normal to each other extends from and is secured to the first sleeve member. The second sleeve member fits into the abutment member when the two shaft sections are aligned and an elastic member interconnects the two sleeve members to allow pivoting of the second sleeve member in any plane away from said two flanges and to bias the two shaft sections into alignment. Flexing is made easier in a plane at 45° to said two flanges than in planes normal to the same. The invention concerns more particularly a golf club with the flexible joint adjacent the hand grip. A whipping effect is achieved in the down swing considerably accelerating the club head with a greater golf ball distance and more accurate ball direction being obtained then with a conventional golf club.
Patent CA-2289997-A1 (CA)
Title: Die cast housing for welding machine generator
Inventor: RADTKE DAVID E
IPC: B23K9/10
Filed: 1999-11-16
Abstract: The generator of an engine-driven welding machine is comprised of front and rear housings that attach directly to each other. The generator stator may be secured solely to one or the other housing with preloaded screws. Alternately, one or more preload elements may be interposed between the stator and one of the front or rear generator housings. Thermal stresses are thereby avoided between the stator and the generator housings, despite the housings being made of aluminum and the stator being made of steel. The rear generator housing has an end wall that is mountable to different selected internal combustion engines by means of teardrop shaped clearance holes and machineable bosses.      Slots for cooling air in the rear generator housing have sides with tangential components. Air leaves a fan in the generator with tangential components that are matched by the rear generator housing slots. The fan incorporates both fan blades and a baffle having a close clearance with an annular wall of the rear generator housing. Side ducts in the rear generator housing allow cooling air to flow around the front generator housing and into the rear generator housing before being expelled out the rear generator housing slots.
Patent CA-2291549-A1 (CA)
Title: Method of and apparatus for restricting copy of digital information, and apparatus for recording digital information
Inventor: MORIYAMA YOSHIAKI
IPC: G06F21/10
Filed: 1999-12-03
Abstract: An apparatus for restricting a copy of digital information (20) is provided with: a detecting device (21, 22, 23, 24) for detecting a first watermark, which is buried in the digital information and comprises a first signal generated on the basis of a first rule; and a burying device (25, 26, 27) for burying a second watermark, which comprises a second signal generated on the basis of a second rule and having a structure different from that of the first signal, into the digital information if the first watermark is detected by the detecting device. A recording apparatus (100) is provided with: an inputting device (10) for inputting the digital information; the above mentioned copy restricting apparatus (20); and a recording device (50) for recording the digital information in which the second watermark is buried by said burying device.
Patent CA-2293267-A1 (CA)
Title: Flow inducer fish guide and method of using same
Inventor: TRUEBE ERIC PAUL
IPC: A01K61/00
Filed: 1998-06-09
Abstract: An apparatus for generating a current to guide fish includes a propeller; a device to rotate the propeller; and a frame to mount the propeller and the device to rotate the propeller. Fish may be guided from an intake area to a fish bypass by generating a current leading away from the intake area. The apparatus may also be used to guide fish through low velocity areas in river situations.
Patent CA-2293517-A1 (CA)
Title: Systeme pour l'application en continu d'une publicite sur un dispositif de visualisation anime de maniere sequentielle ou continue
Inventor: REYES-PARIS LUIS ALFONSO
IPC: G09F11/28
Filed: 1998-03-05
Abstract: La présente invention concerne un espace de promotion pour des supports publicitaires, pourvu d'un système de mouvement et d'animation, constitué par des unités de lignes optiques. Ce dispositif se compose de bandes continues présentant plusieurs lignes optiques sur leur partie avant, et qui, une fois assemblées cote à cote, en parallèle, forment une image complète. Ce système est pourvu d'un moteur réducteur avec un temporisateur. Ce dernier se trouve en prise avec un arbre de synchronisation central couplé, dans sa partie supérieure, à un engrenage mâle de synchronisation qui vient se mettre lui-même en prise avec un élément cylindrique postérieur. Cet élément cylindrique postérieur est pourvu d'ergots d'entraînement au niveau de sa partie supérieure et de sa partie inférieure. Dans la partie avant de chaque unité se trouvent deux éléments cylindriques libres sans ergots d'entraînements. Le mouvement des bandes est ainsi synchronisé et ces dernières, une fois assemblées, présentent une image sur leur face avant. Ces bandes sont pourvues de perforations au niveau de leurs bords, dans lesquelles viennent se loger les ergots d'entraînement de l'élément cylindrique postérieur afin d'assurer une rotation vers la gauche ou vers la droite. Lors de cette rotation, la bande présente une synchronisation parfaite permettant ainsi aux unités assemblées de former l'image requise sur leur face.
Patent CA-2295993-A1 (CA)
Title: Novel stereoselective processes for the preparation of gabapentin analogues
Inventor: BRYANS JUSTIN STEPHEN
IPC: C07C227/22
Filed: 1998-08-11
Abstract: This invention is novel processes for the stereoselective preparation of gabapentin analogues.
Patent CA-2296638-A1 (CA)
Title: Transparent articles of polyester resin
Inventor: AL GHATTA HUSSAIN
IPC: C08J5/18
Filed: 2000-01-20
Abstract: Transparent articles, in particular sheets, having a thickness greater than 5 mm obtained from polyalkylene terephthalate/isophthalate resin containing 5-20% of isophthalic acid units, characterised by an intrinsic viscosity greater than 0.8 dl/g; melt strength at 280°C greater than 1 cN and melt viscosity at 280°C greater than 2000 Pa~a for shear rates tending to zero and not less than 200 Pa~s for shear rates of 1000 sec-1.
Patent CA-2297176-A1 (CA)
Title: Substituted imidazoles useful in the treatment of inflammatory diseases
Inventor: WU WEI
IPC: A61K31/695
Filed: 1998-04-17
Abstract: This invention relates to a series of substituted imidazoles of Formula (I), pharmaceutical compositions containing them and intermediates used in their manufacture. The compounds of the invention inhibit the production of a number of inflammatory cytokines, and are useful in the treatment of diseases associated with overproduction of inflammatory cytokines.